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Practical answers to common plastic material challenges

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PI aerogel preparation shrinkage and cracking

The core of PI aerogel preparation is protecting the nanoporous structure

Material Drying PI aerogelgelsolvent exchangesupercritical dryingporous structure

PAA solution viscosity decline during storage

PAA solution stability is its biggest challenge as a PI precursor

Material Drying PAA stabilityhydrolysislow-temperature storageuse time limit

Polyamic acid（PAA）solution viscosity control

Material Drying PAAsolution viscositypolycondensationmonomer ratiodry solvent

PES processing comprehensive problem - drying moisture

Material Drying PESdrying moistureprocessing qualityprocess optimizationequipment management

Defects in PES film casting

PES film formation has strict requirements on every step of the process

Material Drying film castingcasting solutionsolvent volatilizationgradient dryingair field uniformity

Product bubbles and silver streaks

Material Drying bubblessilver streaksdryingmoisture contentholding pressure

PEI processing comprehensive problem - moisture absorption and drying

Material Drying PEImoisture absorption and dryingprocessing qualityprocess optimizationequipment management

PEI rapidly re-absorbs moisture after drying

Material Drying re-moisture absorptiondrying hoppersealingworkshop dehumidificationonline feeding

Product dense silver streaks/bubbles

The strong hygroscopicity of PEI (1.25%) is the main cause of silver streaks and bubbles

Material Drying silver streaksbubblesdryingmoisture contentmelt temperature controlback pressure

PEEK processing comprehensive problem - drying and dehydration

Material Drying PEEKdrying and dehydrationprocessing qualityprocess optimizationequipment management

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